[CalendarServer-users] iCal problem in mailgateway

Hello, I have a problem in my iCal: if I schedule a meeting and the recipient accept it, I can't receive the answer. The log says: 2013-03-14 22:54:57+0100 [-] [caldav-8009] [PooledMemCacheProtocol,client] [twistedcaldav.scheduling.scheduler#error] Only localhost is allowed to submit internal scheduling requests, not 127.0.0.1 2013-03-14 22:54:57+0100 [-] [mailgateway] 2013-03-14 22:54:57+0100 [AuthorizedHTTPGetter,client] [twistedcaldav.mail#error] Mail gateway failed to inject message <f46d043748df241b7304d7e99270@google.com> (Reason: 403 Forbidden) Could someone help me? Thanks in advance.